DIY Mini Split for a Shop: Heat & Cool Your Workshop Yourself by Zone Air
A DIY mini split for a shop or workshop delivers year-round heating and cooling you install yourself — no contractor, no ductwork. Most shops run 400–800 sq ft, so an 18,000 BTU system handles the load, with pre-charged line sets that skip the vacuum pump and EPA license.
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What Size Mini Split for a Shop?
Shops and workshops often have higher ceilings and less insulation than living spaces, so size up. At roughly 20 BTU per square foot, a 400–800 sq ft shop typically needs 12,000–18,000 BTU; an uninsulated or metal building may need the full 18,000 BTU or a multi-zone setup. Zone Air heat pumps run down to -13°F, so they keep a shop usable through winter. Check your exact space with the sizing calculator.
Get the right size for your shop, or size it first with the free calculator.